阅读说明：本技术 一种塑性鞋壳及其成型工艺和使用方法 (Plastic shoe shell and forming process and using method thereof ) 是由 余文良 余亭宏 余权洪 于 2020-07-01 设计创作，主要内容包括：本发明公开了一种塑性鞋壳及其成型工艺和使用方法,所述塑性鞋壳包括有鞋头和鞋体,所述鞋头与鞋体注塑成一体,所述鞋体内设有网状发热丝,在所述鞋体后跟下部设有电源连接头,所述电源连接头与网状发热丝电连接,注塑所述鞋体所采用的复合材料按重量百分比包括以下组分：PP80-95％、ABS 1-8％、热塑性聚氨酯2-15％、尼龙纤维0.5-2％、氧化铝纤维0.1-0.8％、PE蜡1-5％,马来酸酐接枝聚烯烃0.3-1％、抗氧化剂0.01-0.5％。本发明塑性鞋壳结构简单,制作方便,鞋体所采用的注塑材料组分及配比合适,从而使得鞋体韧性好,耐磨损,且热塑性好,与鞋头连接牢固。(The invention discloses a plastic shoe shell and a forming process and a using method thereof, wherein the plastic shoe shell comprises a toe cap and a shoe body, the toe cap and the shoe body are integrally injected and molded, a reticular heating wire is arranged in the shoe body, a power supply connector is arranged at the lower part of a heel of the shoe body and electrically connected with the reticular heating wire, and a composite material adopted by injection molding of the shoe body comprises the following components in percentage by weight: PP 80-95%, ABS 1-8%, thermoplastic polyurethane 2-15%, nylon fiber 0.5-2%, alumina fiber 0.1-0.8%, PE wax 1-5%, maleic anhydride grafted polyolefin 0.3-1%, and antioxidant 0.01-0.5%. The plastic shoe shell has simple structure and convenient manufacture, and the injection molding material adopted by the shoe body has proper components and proportion, so that the shoe body has good toughness, wear resistance, good thermoplasticity and firm connection with the toe cap.)

1. A plastic footwear shell, characterized by: including the toe cap (1) and the shoes body (2), the toe cap (1) is moulded plastics integratively with the shoes body (2), be equipped with netted heater (3) in the shoes body (2) heel lower part is equipped with power connector (4), power connector (4) are connected with netted heater (3) electricity, mould plastics the combined material that the shoes body (2) adopted includes following component according to weight percent: PP 80-95%, ABS 1-8%, thermoplastic polyurethane 2-15%, nylon fiber 0.5-2%, alumina fiber 0.1-0.8%, PE wax 1-5%, maleic anhydride grafted polyolefin 0.3-1%, and antioxidant 0.01-0.5%.

2. The plastic shoe shell according to claim 1, wherein said composite material comprises the following components in weight percent: PP 90-95%, ABS 1-4%, thermoplastic polyurethane 2-10%, nylon fiber 0.5-1%, alumina fiber 0.1-0.5%, PE wax 1-3%, maleic anhydride grafted polyolefin 0.3-0.5%, and antioxidant 0.01-0.1%.

3. The plastic shoe cover according to claim 1, wherein said mesh-like heating wire (3) is a mesh-like carbon nanotube heating wire.

4. Plastic footwear shell according to claim 1, characterized in that the toe cap (1) is a carbon fiber toe cap or a plastic toe cap.

5. The plastic shoe shell according to claim 1, wherein the toe cap (1) is detachably mounted on the front end of the shoe body (2), the outer wall surfaces of the left and right sides of the toe cap (1) are respectively provided with a connecting projection (11), the inner wall surfaces of the left and right sides of the shoe body (2) are respectively provided with a connecting groove (23) into which the connecting projection (11) can be inserted, and the inner wall surfaces of the left and right sides of the front end of the shoe body (2) are respectively provided with a clamping inclined block (21) beside the connecting groove (23), and the outer wall surfaces of the left and right sides of the toe cap (1) are respectively provided with a connecting inclined groove (13) into which the clamping inclined block (21) can be inserted.

6. The plastic shoe shell as claimed in claim 5, characterized in that the lower end of the connecting chute (13) is provided with an arc-shaped groove (14) extending to the bottom surface of the toe cap (1), and the lower end of the clamping inclined block (21) is provided with an arc-shaped projection (22) extending to the inner bottom surface of the shoe body (2) and capable of being clamped into the arc-shaped groove (14).

7. The plastic shoe shell according to claim 1, characterized in that a positioning concave surface (24) capable of accommodating the bottom surface of the toe cap (1) is arranged on the bottom surface of the front end of the shoe body (2), a convex positioning boss (241) is arranged on the positioning concave surface (24), and a positioning through groove (240) capable of being clamped with the positioning boss (241) is arranged on the bottom surface of the toe cap (1) in a penetrating manner.

8. A molding process of a plastic shoe shell is characterized by comprising the following steps:

s1, opening the injection mold, arranging the toe cap (1) and the reticular heating wire (3) at the corresponding positions of the mold cavity, and closing the injection mold;

s2, adding PP, ABS, thermoplastic polyurethane, nylon fiber, alumina fiber, PE wax, maleic anhydride grafted polyolefin and an antioxidant into a screw extruder for melting and plasticizing to obtain a composite material;

and S3, injecting the composite material obtained in the step S2 into a mold through an injection molding machine, cooling, and taking out the composite material from the mold.

9. The molding process of a plastic shoe shell according to claim 8, wherein the temperature of melt plasticizing in step S2 is 80-160 ℃, and the screw rotation speed of the screw extruder is 80-600 r/min; in step S3, the injection pressure is 8-200MPa, and the working temperature of the injection molding machine is 110-280 ℃.

10. A method for using a plastic shoe shell is characterized by comprising the following steps:

s11, connecting the power connector (4) with a power supply to enable the mesh heating wire (3) to heat; or placing the plastic shoe shell into a heating box; heating the shoe body (2) at 95-105 ℃ for 5-7 min;

s12, naturally cooling for 10-25 minutes, and putting the feet or the foot molds of the users into the shoe bodies (2);

s13, tightening the shoelace and shaping for 5-10 min.

Technical Field

The invention belongs to the field of shoe manufacturing, and particularly relates to a plastic shoe shell, a molding process of the plastic shoe shell, and a using method of the plastic shoe shell.

Background

The existing ski shoes basically adopt rigid materials of hard shells to manufacture protective components such as soles, shoe heads and the like, and one part of the hard protective parts is processed by sewing the shoe heads and the shoe bodies in production, but the sewing processing procedure is complex, consumes time and labor, and the sewing is easy to break, so that the shoe bodies and the soles are separated. In the prior art, the toe cap, the shoe body and the shoe body are integrally formed by injection molding, but the existing integrated injection molding method for the shoe shell cannot be suitable for different wearers due to the defects of the adopted raw materials and the preparation process, and the shoe shell manufactured by the existing process cannot be specifically plastic according to different foot types because the foot sizes and the foot heights of different wearers are different. This makes the wearer very uncomfortable and prone to jamming or excessive looseness problems.

Therefore, the existing shoe shell and the forming process are required to be further improved.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the plastic shoe shell which is simple in structure, convenient to use and capable of being shaped according to the foot shapes of different wearers, so that the wearer can wear the shoe shell more comfortably.

The invention also aims to provide a forming process of the plastic shoe shell, which has simple process and reasonable conditions, so that the shoe body has strong shaping capacity, good product quality and difficult damage.

The invention also aims to provide a using method of the plastic shoe shell.

In order to achieve the above object, the present invention adopts the following scheme with respect to the plastic shoe shell:

a plastic footwear shell, characterized by: including the toe cap and the shoes body, the toe cap is moulded plastics integratively with the shoes body, the internal netted heater that is equipped with of shoes the shoes heel lower part is equipped with the power connector, the power connector is connected with netted heater electricity, moulds plastics the combined material that the shoes body adopted includes following component according to weight percent: PP 80-95%, ABS 1-8%, thermoplastic polyurethane 2-15%, nylon fiber 0.5-2%, alumina fiber 0.1-0.8%, PE wax 1-5%, maleic anhydride grafted polyolefin 0.3-1%, and antioxidant 0.01-0.5%.

As another improvement of the plastic shoe shell, the composite material comprises the following components in percentage by weight: PP 90-95%, ABS 1-4%, thermoplastic polyurethane 2-10%, nylon fiber 0.5-1%, alumina fiber 0.1-0.5%, PE wax 1-3%, maleic anhydride grafted polyolefin 0.3-0.5%, and antioxidant 0.01-0.1%.

As another improvement of the plastic shoe shell, the net-shaped heating wire is a net-shaped carbon nano tube heating wire.

As another improvement of the plastic shoe shell, the toe cap is a carbon fiber toe cap or a plastic toe cap.

As another improvement of the plastic shoe shell, the toe cap is detachably arranged at the front end of the shoe body, the split toe cap and the shoe body are convenient to process, the outer wall surfaces of the left side and the right side of the toe cap are respectively provided with a connecting lug, the inner wall surfaces of the left side and the right side of the shoe body are respectively provided with a connecting groove for the connecting lug to be embedded in, and clamping inclined blocks which are respectively arranged on the inner wall surfaces of the left side and the right side of the front end of the shoe body and are positioned beside the connecting groove, the outer wall surfaces of the left side and the right side of the shoe shell are respectively provided with a connecting inclined groove for the clamping inclined blocks to be embedded in, the toe cap can be quickly arranged at the front end of the shoe body by clamping the connecting lug into the connecting groove, and the added clamping inclined blocks and the connecting inclined grooves.

As another improvement of the plastic shoe shell, the lower end of the connecting inclined groove is provided with an arc-shaped groove extending to the bottom surface of the shoe shell, the lower end of the clamping inclined block is provided with an arc-shaped convex block which extends to the inner bottom surface of the shoe body and can be clamped into the arc-shaped groove, and the rigidity of the two sides of the shoe body and the rigidity of the connecting inclined groove can be enhanced through the matching of the arc-shaped groove and the arc-shaped convex block, so that the shoe body cannot be easily turned outwards, and the clamping of the toe cap and the shoe body is loosened and.

As another improvement of the plastic shoe shell, a positioning concave surface capable of accommodating the bottom surface of the shoe shell is arranged on the bottom surface of the front end of the shoe body, the positioning concave surface can effectively support the toe cap, so that the toe cap is not easy to fall off from the shoe body in the process of exerting force of a user, a protruding positioning boss is arranged on the positioning concave surface, a positioning through groove capable of being clamped with the positioning boss is arranged on the bottom surface of the shoe shell in a penetrating manner, the toe cap is positioned more easily by the matching of the positioning boss and the positioning through groove, and the toe cap is effectively prevented from collapsing in the shoe body after being impacted.

The invention relates to a molding process of a plastic shoe shell, which is characterized by comprising the following steps of:

s1, opening the injection mold, arranging the toe cap and the reticular heating wire at the corresponding positions of the mold cavity, and closing the injection mold;

s2, adding PP, ABS, thermoplastic polyurethane, nylon fiber, alumina fiber, PE wax, maleic anhydride grafted polyolefin and an antioxidant into a screw extruder for melting and plasticizing to obtain a composite material;

and S3, injecting the composite material obtained in the step S2 into a mold through an injection molding machine, cooling, and taking out the composite material from the mold.

As another improvement of the forming process of the plastic shoe shell, the temperature of melting and plasticizing in the step S2 is 80-160 ℃, and the rotating speed of a screw of the screw extruder is 80-600 r/min; in step S3, the injection pressure is 8-200MPa, and the working temperature of the injection molding machine is 110-280 ℃.

The invention discloses a using method of a plastic shoe shell, which is characterized by comprising the following steps of:

s11, connecting the power connector with a power supply to enable the mesh heating wire to heat; or placing the plastic shoe shell into a heating box; heating the shoe body at 95-105 deg.C for 5-7 min;

s12, naturally cooling for 10-25 minutes, and putting the foot or the foot model of the user into the shoe body;

s13, tightening the shoelace and shaping for 5-10 min.

In summary, compared with the prior art, the invention has the beneficial effects that:

the plastic shoe shell has the advantages of simple structure and convenient manufacture, and the injection molding material adopted by the shoe body has proper components and proportion, so that the shoe body has good toughness, wear resistance, good thermoplasticity and firm connection with the toe cap.

The invention has simple preparation process, convenient production, simple method process and reasonable conditions, and ensures that the shoe body has strong shaping capability, good product quality and difficult damage.

Drawings

Fig. 1 is a perspective sectional view of the plastic footwear shell of the present invention.

FIG. 2 is one of the exploded schematic views of the plastic footwear shell of the present invention;

FIG. 3 is a second exploded view of the plastic shell of the present invention;

FIG. 4 is a third exploded view of the plastic shell of the present invention;

FIG. 5 is a fourth exploded view of the plastic shell of the present invention;

fig. 6 is an enlarged view of the invention at a in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.